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Great British Bake Off's Prue Leith felt "suicidal" after spoiling the show's finale.

The Great British Bake Off concluded its first series on Channel 4 earlier this month.

The final episode of the Great British Bake Off pulled in its biggest audience of the series with a massive 7.7 million viewers and a 34.6% share of audience from 8-9.15pm, making it Channel 4’s biggest overnight performance in five years (since The Paralympic Games Opening Ceremony in 2012).

Speaking about the mistake this week, Prue said: "I think that was the worst half an hour, when I realised what I'd done.

"I was in Bhutan and when I got reception in the hotel, there was this mass of tweets and one said 'Don't forget to congratulate the winner' so I tweeted straight away."

She explained to ITV's This Morning: "As soon as it went out, I went into panic mode and I couldn't work my phone, I couldn't figure out how to delete it.

"In the end I rang my PA - she'd already deleted it 89 seconds after I posted it but it was too late.

Asked how she felt at the time, Prue candidly confessed to hosts Holly Willoughby and Phillip Schofield: "Suicidal, I mean awful, the thing that upset me most was that it would take attention off the winner."

Prue went on: "Sophie has worked so hard for months and months and the column inches would be filled with my mistake than her hard work.

"Everybody was really nice about it, a lot of very famous people even tweeted or emailed me to say it's exactly what I could have done.

"But you have to be a real idiot to do that. Bake Off had kept the winner a secret for 8 years until I come along and screw it up," she joked.

Despite the social media faux-pas, Channel 4 have said Prue will return next year alongside Paul plus hosts Noel Fielding and Sandi Toksvig.